DSQ 40/4 K

Discontinued product
Article number: 0080.0077
Manufacturer: MAICO
Sound-insulated radial fan for high temperatures, three-phase AC, DN 400
Application examples: High temperatures of up to 180°C, Workplace air extraction system, Machine extraction unit
DSQ 40/4 K IM0013307.PNG Sound-insulated radial fan for high temperatures, three-phase AC, DN 400

Characteristic curve

DSQ 40/4 K - Characteristic curve

Dimensioned drawing

DSQ 40/4 K - Dimensioned drawing [mm]

Technical data

DSQ 40/4 K - Technical data

Article DSQ 40/4 K
Air flow volume 4.450 m³/h
Speed controllable
Type of voltage Three-phase AC
Rated voltage 400 V
Frequency 50 Hz
Nominal output 550 W
PMax 550 W
Inom 1,6 A
Imax 1,6 A
Degree of protection IP 55
Insulation class F
Mains cable 5 / 1,5 mm²
Installation position vertical / horizontal
Housing material Sheet steel, galvanised
Weight 62 kg
Swivelling fan
Nominal size 400 mm
Width 640 mm
Height 790 mm
Depth 695 mm
Airstream temperature at nominal current 180 °C
Airstream temperature at IMax -10 °C up to 180 °C
Sound pressure level 53 dB(A) / Distance 3 m, Free-field conditions
Packing unit 1 piece
Range C
GTIN (EAN) 4012799800774
Article number 0080.0077


63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz


LWA2, high (dB(A))









LWA5, high (dB(A))









LWA6, high (dB(A))









LWA2= housing sound power level in dB.

LWA5= free inlet sound power level in dB.

LWA6= free outlet sound power level in dB.


DSQ 40/4 K - Accessories

Specific accessories

Product type Name Art. No. Price*(EUR) Action
Fixing cuff ELR 40 0092.0116 on request
  • On the notes

General accessories

Product type Name Art. No. Price*(EUR) Action
Tubular sound absorber RSR 40/50 0092.0336 on request
  • On the notes
Contactor US 16 T 0157.0769 on request
  • On the notes
Frequency converter MFU 1 0157.1214 on request
  • On the notes
5-step transformer TR 2,5-2 0157.0149 on request
  • On the notes
5-step transformer, control cabinet TR 2,5 S-2 0157.0152 on request
  • On the notes
5-step switch for TRE...S -2/ TR...S-2 5-step transformers DSS 20 0157.0750 on request
  • On the notes
Air flow monitor LW 9 0157.0779 on request
  • On the notes

Product description


DSQ 40/4 K

short description

Sound-insulated radial fan for high temperatures, three-phase AC, DN 400

Product description


  • 400 V model (3+PE).
  • Speed controllable with MFU frequency converter or transformer.
  • Prescribed motor overload switch must be provided by customer.


  • Side panel with exhaust air connection can be fitted in 3 different directions. Can therefore be varied during installation even in awkward spaces.
  • Compact dimensions.
  • Motor located outside of the air flow.
  • Very quiet operation thanks to excellent sound insulation.
  • Impeller with blades curved to the rear. Resulting in optimised efficiency and low maintenance costs.
  • IP 55 degree of protection.

Mounting instructions

  • Installation inside the building.
  • Mounting feet already pre-fitted.
  • Side section with intake socket is permanently fitted. The side section with exhaust opening can be adapted to a wide range of installation situations.
  • Housing wall is easy to remove.
  1. Side panel, removable
  2. Catch
  3. Support foot
  4. Impeller
  5. Intake sockets
  6. Terminal box

S Information sign - Impeller direction of rotation

T Rating plate

Electrical connection

  • Connection to external terminal box.

Table of contents

Wiring diagram

DSQ 40/4 K - Wiring diagram

Predecessor - successor

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